Current Electricity
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Current Electricity

The complete content is developed in High Quality 3D animation, that will help you to understand the critical concepts.
3.7 (3 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
76 students enrolled
Created by Digital Tutors
Last updated 4/2015
English
Current price: $10 Original price: $20 Discount: 50% off
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Includes:
  • 6.5 hours on-demand video
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • From this course students can gain knowledge on Current electricity, Electrostatic potential and capacitance, Electric charges and fields.
View Curriculum
Requirements
  • Students should know basic knowledge on current flow.
Description

Definition: It is defined as the time rate of flow of charge through any cross section of a conductor.

Electric current = total charge flowing per time taken.

i = q / t .

OHM'S LAW:

It states that the current 'i' flowing through a conductor is directly proportional to the potential difference V across the ends of the conductor, provided physical conditions of the conductor such as temperature, mechanical strain etc. are kept constant.

Electric Current:

1 ampere of electric current is produced when 1 coulomb of electric charge passes through the cross-section of the conductor in 1 second.

RESISTANCE:resistance of a specimen of a material is the opposition offered by it to flow of current.

Definition: the resistance of a conductor is defined as the ratio of the potential difference V across the conductor to the current i flowing through the conductor.

Combination of resistors

Series combination:

Consider a number of resistors connected in series by joining them end to end such that same current passes through all the resistors.

Parallel combination:

Consider a number of resistors connected in parallel by joining one end at one point and other end at another point.

Who is the target audience?
  • Students studying in middle and upper classes.
  • Science students, teachers and lecturers.
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Curriculum For This Course
Expand All 110 Lectures Collapse All 110 Lectures 06:40:33
+
Electric charges and fields
18 Lectures 01:13:54






Basic properties of electric charges
05:24

Coulomb's law
04:45

Forces between multiple charges
03:59

Electric field
05:08

Electric field lines
03:59

Electric dipole
08:22

Dipole in a uniform external field
03:11

Electric field of a continuous charge distribution
04:14

Gauss's theorem
04:56

Application of gauss's theorem
09:23

Electric field lines
04:01

Summary
02:30

Electric charges and fields - level 1
5 questions

Electric charges and fields - level 2
5 questions
+
Electrostatic potential and capacitance
19 Lectures 01:05:05
Prerequisites
01:02

Learning objectives
00:55

Introduction
00:58

Electric potential
05:18

Potential due to a point charge
02:30

Potential due to an electric dipole
02:53

Potential due to a system of charges
02:25

Equipotential surfaces
03:11

Potential energy of system of charges
03:41

Potential energy in an external field
03:30

Electrostatics of conductors
01:34

Dielectrics and polarization
03:33

Capacitors and capacitance
01:44

The parallel plate capacitor
02:18

Effect of dielectric on capacitance
04:46

Combination of capacitors
04:26

Energy stored in capacitors
05:37

Van de graff generator
06:10

Summary
08:34

Electrostatic potential and capacitance - level 1
5 questions

Electrostatic potential and capacitance - level 2
5 questions
+
Current electricity
17 Lectures 01:10:58
Prerequisites
00:20

Learning objectives
00:59

Introduction
02:43

Electric current
04:14

Ohm's law
01:18

Resistance
02:27

Superconductors
03:19

Combination of resistor
04:02

Electrical cells
05:16

Grouping of cells
07:32

Kirchhoff rules
04:46

Wheatstone bridge
07:04

Metre bridge
02:06

Potentiometer
04:00

Temperature dependence of resistivity
03:04

Drift velocity
13:22

Summary
04:26

Current electricity - level 1
5 questions

Current electricity - level 2
5 questions
+
Alternating current
17 Lectures 01:45:36
Prerequisites
03:45

Learning objectives
01:00

Introduction
04:21

Instantaneous value of current (i)
05:27

R.M.S Value of ac
07:24

Power in ac circuit
05:38

AC Through a resistor
05:53

AC Voltage applied to an inductor
02:50

Inductive reactance
04:21

AC voltage applied to a capacitor
06:49

AC Voltage applied to a series lcr circuit
11:55

Resonant circuit
06:22

Importance of power factor
10:28

Lc oscillations a qualitative study
03:14

LC Oscillations lc circuit
04:04

Transformer
12:54

Summary
09:11

Alternating current - level 1
5 questions

Alternating current - level 2
5 questions
+
Electricity
15 Lectures 30:06
Prerequisites
00:35

Learning objectives
00:43

Introduction
01:05

Electric current and circuit
03:03

Electric potential and potential difference
02:04

Circuit diagram
01:04

Ohms law
02:55

Factors on which the resistance of a conductor depends
03:06

Resistance of a system of resistors
00:45

Resistors in series
02:37

Resistors in a parallel
02:15

Heating effect of electric current
03:21

Practical’s of heating effect
02:09

Electric power
01:51

Summary
02:33

Electricity - level 1
5 questions
+
ELECTRICAL CONDUCTIVITY OF LIQUIDS
3 Lectures 05:30
CHEMICAL EFFECT OF ELECTRIC CURRENT
02:37

ELECTRICAL CONDUCTIVITY OF LIQUIDS
01:55

WHAT IS ELECTRICAL CONDUCTIVITY
00:58
+
HEATING EFFECT OF ELECTRIC CURRENT
10 Lectures 27:26
HEATING EFFECTS OF ELECTRICAL ENERGY
02:27

FACTORS GOVERNING HEATING EFFECT OF ELECTRIC CURRENT
06:50

APPLICATIONS OF HEATING EFFECT OF ELECTRIC CURRENT
03:16

ELECTRICAL ENERGY & EXAMPLES
03:57

MEASUREMENT OF ELECTRICAL ENERGY AND ITS UNIT
01:39

ELECTRIC POWER
02:19

WATTAGE OF ELECTRICAL APPLIANCES
02:06

House hold consumption of electrical energy
02:01

Power rating of electrical appliances
01:45

COMMERCIAL UNIT OF ELECTRICAL ENERGY
01:06
+
STATIC ELECTRICITY
11 Lectures 21:58
CHARGING BY FRICTION
03:59

DIFFERENT KINDS OF CHARGES
01:08

ELECTROSCOPE
00:55

EXPLANATION OF CHARGE ON A BODY IN
02:24

GOLD LEAF ELECTROSCOPE
01:26

LIGHTNING CONDUCTORS
01:42

LIGHTNING
02:12

PITH BALL ELECTROSCOPE
00:51

QUANTUM NATURE OF CHARGE
03:56

SIMPLE ORBITAL OF ATOM
02:16

STATIC ELECTRICITY SPARKS
01:09
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